Clutch



H. l. SMITH.

CLUTCH.

APPUCATION FILED )ULY 3l, 19|?. 1,431,053.

Patented Oct 3, 1922.

5 SHEETS-SHEET l.

H. 1. SMITH.

CLUTCH. APPLLcnloN FILED :uur 31.1919.

Patented Oct 3, 1922.

5 SHEETS-SHEET 2 zia H. l. SMITH.

CLUTCH. MPucnlou FILED mural. 1919.

Patented Oct. 3, 1922.

5 SHEETS-SHEET 3 Imi lill/7l l/A s" lll H. 1. Smm.

CLUTCH.

MPLICATION HLED LULY 31.1919.

1,43 1,053, Patented Oct. 3, 1922.

5 SHEETS-SHEET 4.

2 l mil/ny f my@ H. 1. SMITH.

CLUTCH. APVPLCATION HLED IULY31|1919.

Patented Ont. 3, 1922.

5 SHEETS-SHEET. 5.

Sw @n rr-Ami? J, sir-1TH; .ormswoonf omo;

GLUTCR'L Application illed July Si,

uuinlii'ired lionsA 'in Figs. l iiiul 2.

l fi

Stiitoof Ollio', liii reinvented newiind-useulv Improvements in Clntcl'ies, ofwhich 'the 'fol-f lowiiigriis :i -speciliatihm This iii'vcntioii relntes'to a frictioii`-cliitelr of illicwylni iii-which one clutch niem'her s fi i'r" transmit-ting. power from ii driving "to :i ilijiicn clement;

'Ilie'ohject of tliisiui-eiition is tlie. producrdq'niivs' no lalterations in its hre' within" s-ii. vertical=longztuiliiiiil suction ofoiiwform ofin'y iiiprorcd rlulrh sliowingtlie:sinne-in its' i'lusrd or coiiplrd-condition.. Figui- 2 is'ii horizontal sim-tion oftliisaune. Figures' 3.4;?) 4unil (i uri -rvrlr'iil ti'iiiisi'iiszi sections' o1'V ll| -.-::iinc.- hik-ou un illeA rori'vspo|i(lingl\ Figuioi isn top-plain viruol' lliirlutcli` pin-tlv iii :wrtioiif 'Figui'u S is :i fiiiguuutiiili. longi tiirliiizilsrrliui lulwii ou liiu- RNS. Fig. l.` Figui-0 9 is :i iriigiiwiitiiry longitudinal svc tion. on :in rulni'giil smile. und ir-illl somo purls oniiltvil` showing l'lir i'lulcli opened or in uni-oupliil i'onililioii. Figui-v 1U is u fijziguii-iilzii'il long rlucliinil4 svrtoii tiikun on liiiv-lU-HL Fig. T. Figure. ll is :i side vleruiiiin of llw operating i'iillur anilla puri. of the open-ailing li'rur. Figure l2 is n friigp nwutiiry' longitudinal svi-lion. showing u iiiodilirill-ion uf ini' iiiiprm'vuunt. Figure li'i is'zi siution on' lim' ifi-13. Fig. l2.- Figures i4 imd l5 :ii-r fruguioiitnry longitudinal srrtious showing: iiiiotlwr inoiliiird forni of my in'i-cntionp Similar iliailuctrrs of irfrlvini indicato oorirspoii'diug parts throughout the. several views. V

Although my iniprovbd clutrli muy be no cli-iw is possible' when tlie ntilizedffdr coiipl'ngleiidr imoou li alii twomei'nbers for transmitting rotalrlotioiyi froinone bjtl'io'ythr, the saine is shown .injtlie'aeegmpamgdrnwings, foi: example, for eoiiA lingan nne'oupling two shafts 20 21,-wli`ie are arranged lxiallyin line and en go end; and the-.former in-tlus nstzmicgrserv` mg.' :isA iig-drain "shaft and A'the latter as a y n -tli'e'endof tho-driving aft: is mounts@ a 'coupling-or clutch sleeve 22 which may lie'secnred thereto ii -an suitnble-manner, so-"gs'ft 1mm therewt for t. instance" by 'memsof'nkey 23 and set screws tio'ii'ofii clutch oftl'is character which will 24," :isps oivnlin' Engl-2. intermediate clutcli'go'r ooiiplingfdisk sfmoimted on this .iou ling-.sleevensto lid-capable of moving'mi'rll [relativ-ely to tliedriving shaft iis, bein 5 prefer-nhl plisligdhyprovidnglt ie Icentei' o 'this disk )ritli'irpoljgonirlopeiingi which fits slidirigly over' al. eorresiondinglyfslmped. pripliery 2791i ftlie SoupV in sleeve, as shown-in ligsxlf'iind; Tlieuren shaft 21A en- 29'"iepresenf't\vo gripping jaws or i -vniliers-wliicli nl this-insta nce are constructed iii tlie-'forin of rings mid between which' rliitcli disk -und' tlieo ,iposing'fiiccs, res ieriively, of tli'o'outer am 'inner grip )ing ruins. llv tliisni'eiiiis -the i-.liltrh can lie coup od wit-li reduced pressure or 'ii'itl'iV a pressure usually1-equiir-d"for operating tlir clutch1 which increased uren uiigments the capiicit-y of the i-lii'tcli. 'll'iese two gripping rings ,arc

.pro hriblylield oone'iitrieally one relatively to the otl'ii" und-also guided -axiilly as the more toii'ii'il nndfroni the clutch disk. this being pm'ferably uecoinplished by. proi-'iding the outer igrip in'g ring at its outer edge with an inwai' lvy projecting annular flange 32iwliicli-extends over `thri-'peripheral edge of the inuer gri pingldislqas shown in Figs. l, 2 and 9. e frictionrings 30, 31.a.re

ac'com- Seated loosely bore of the l1 eir central position.

ts the hub of the clutch upon which part of the the whi eriibly' of tub the meclianis key 34 and set or by an end of th engages t so as to aid in con tween its ends the hub annular flange 36 the preferably en ange 32, so and the parts associat The backward nio grippin prefers l Vsame wit formi for limiting ward the clutch shown in Fi a plurality of 37 which slide formed in an an around the axis thereof with, a. plurality oflsto ranged in one of sai gaging its threaded g 29, end a pliiriility which engages with tl end' of one of the which and the inne spective guide sleev ends thereof. guide for the in und the washer the extent of m the clutch disk.

41 represents an iidjnstiu lower sleeve forming part o adjusting the position of th relative to the clutch disk 'the parts und also for tu that the clutch will Opern This iidjiisting ring siii )ping ring, the hul is provided iit its wnrdly projecting :in 42 which engages with thi'. o outer' gripping ring.'

43 represents ii shiftin the rear pi-ft of the liiil periphery intermediate external screw thieud 44 `iin internal sci-cw thread 45 oi" said adjusting en d of the 'sliiftin l'lIl with th llitrcliy which the outer at their outer edges nd are held thereby in the clutch. For the purpose o adjusting the y other suitable e periphery of this hub the inner gri gages with t 1 a stop, and me gs. 2 and 4, pref i und iissociat front end with a follower Humro arranged on opposile'sides of the axis of the uter side of the clutch.

g ring is uilupte e reni' side of the hubV serve :is ii sto within the sway from the clutch disk u on i'eleiisl china position of the outer `gripping ring relapreftively to the shifting ring upd incidentallv istance which t gripping rings more gripping toward and from op osite sides of the clutch C y be d isk, as will present y appeiir, the adjusting ven shaft by u ring is turned so as to cause the screw conas shown in Fig. 2, nection between the 'saine n ndlthe shftii' The inner rinro move the outer grlppingritows preferably or ppin ring turni of the ad'ustin vrin isi-1 referabt me aiigd beetfecte I g g p is provided with an openings Lr ring surrounding each of w l und provided on iti.- opposite side walls 'areof V-shuped forni,

provided formed in the cylindrical f this ring toopenings 49 in the shifting ring, .each of ese means, iis these pins being provided nt itsA front end rably omprise with n sqi'iiire or lliittenedV head' 50 which end spacing sleeves slides in ii lo itudinalslot 6l in the front se in openin 's 38 edge'of theshiftin ring and bears ageinst w in the hub an gl sind parallel thereouter ipping ring, and a set screw 62 sr:- p bolts 39 each arrangeffli d guide sleeves und enof the respective o ningI 4 t end with the inner ing the screws 52 tlii: of washers 4.0 euch turned freely sind after the parts have n ie head at the reiir shifted into the proper position they are held stop bolts and between in phice bytigh'tening these screws.

' ping rin'g the reamped ut opposite movable lengthwise of the axis of the clutch e sleeves form ii und rovided with an enlarged front artl! ner gripping ring on the hub whic i surrounds the rear .p art of t e huh s 4U form stops which limit and slides into the' adjusting ring while ,its ovement of this ring toward rear part 56 is contraetelwnd slides by in the clutch disk as i uir'e This l? inserting a Spanner Wrench in 6 formed m the follower llangeof peri hery of` which the adjustingA ring. After adjustment the e bore lof the Vshifting ring and adjusting rmgnre held d in centering the latter against circumferential displacement 4relaed therewith. l vement of the inner vice which preferably comprises a plurality om the clutch disk isof locking pins 47 arran engagement offthe row around the a'xis of e cliitch and slidde of the hub-Hangs ans are also ing parallel therewith in guide openin 48 the inner or roar e ge of the Hinge of the 9. Upon loosenadjusting ring ma be 5.3 represents an operating spool or yoke means of iin interposed husliiiii 56 on the ring or foladjacent partei the driven sha This o 3 the means for erating spool ismoved lengthwise of t e e gripping rings clutch b means of a coller 57 mounted on when assembling the spoo unil a hand lever 58 engaging said king up wear, so rollaiz This collar is composed of two semite most effectively. cylindrical sections which embrace the conroiinds the outer triicted part of the spool between the front ed dpurts und rear shoulders 59, 60 thereon, these-secii intions beingcoimected by transveise bolts 6l he outer sides o'f the collar tions are provided wi th i'iotches or ich has a 'tlut'lh'olttom 62 while' its of its ends with :in so that this recess eulhires from its central h enpnges with port town. ou the rear pnrt e inner nr front stationery art, for instance on-a riicket 64 d to engage by means oi) [hinge :ind lengthwise of the clutch und thecentral part p to limitthe distance of this lever is forked or bifurcii gripping ring is moved its branches 66 soyrriinged in the recess of opposite' ends. e operating ever is pivoted' rit one end on an 4siiitiible a pin 65,so thiittlie lever swings and has ear parts o thel 95 he w internally ihmded part the operating spool that the opposite edges v79 in the rear edge of the annular flange 32 of each brunch fulcrum on rock on the sumofthe outer ripping rin 28. Euch of the mit parts of the V-shaped side wells; es fulcrumblocls is seen et its rear end to` shown in Fig. 11, thereby avoidingsepereted the shiftingrng'by means of ya screw 80, trunnions for this purpose.- B this means as showninFig. l, or byvan lother suitable 7o the operating spool is compel ed to move lmeans. The outereend of tie short iirin of lengthwise with the collar and lever but is 'each clamping lever is errangedbetnfwn the to turn independently of; the sinne. branches of olie of tliefiilerum blocks and he moons for transmitting Athe lon ipivotellyeonneeted therewitiiby a trans- 10 tudinally-reciprocatin moifement from ie verse p inhavjng e cylindrical eentralpiirt 75 openating spool to t e gripping members 81 which is sented in a.; correspondingly andhssociated parte are constructed as folshiiped opening; in `tlie-respeotive clamping lows: lever, iis-:iliona: in1Figs. 1-,etand 9 amldliib 77 represents a plurality of bifurcatedfnltened ends -82 wliichengagie with inwardl rum lugs arran ed in en annular row on openingslots `83 -formed v-mdia'lly in die Ythe rear side of t e inner Fripping ring and branches of the fillerum hloclnnis shown in each projectin rearward y; from this ring Figs. 4,.8end'10. 'this meanstheclum ithrough n ra :al slot 68 arranged in the ngleversnece beef tilrning'mliitively AAhub flange and extendinlg to the edge-thereto the fulcmmb ,Ocks mtwitlistondingrthut of. On eaeh'of these fu crumlligs anelbow 'the letter move tai'igentinlly .relatively to 85 clamping lever is pivobed h ineens of'e the axisof theclfgmping-Ieiyei-,therebjavoidtransverse pin 69, so that t e short front ing o.'cremping-iictionbetweeniheseperte. arm 70 of vthis lever rejects radially out- By engegi each of Vthe fnluriim 4liloolos ward' fromthis pin w iile its long rear arm with longitu inal slots in ithe shifting ring 7l projects longitudinally rearward from end-the llangeofthe outer gripping ring 90 the semeA An suitable number of the ful sind arrangixigtlie clginpingflevem` in slotted crum lu and clamping levers may be emlugs on the inner grippingring and lonniployed, unset; of the saine being shown' tudinel slots -in-the ogeniting f spool, these es an exemple in the drawings endl-arranged several perte are hel against' circumferuidistiint erouiid the axis of the clutch. entinl displacement reletivelyfto eachother 95 "lllie long rear arms of the clamping levers and thereli. .eniibliA Jthepitrts' to move ere arranged within the enlarged-front art freely I engti-wi'se ofi e exis-.of the clutch l of the operating spool and each ofeee withoutl any `eriim ing notion. arms extends through theV front part of a 4' U Vn moving ie. operatingY s iool forsis longitudinal slot 72, in this part 'of the we lyV by means oif-theoperating.'l lever und 100 smal, so tlnit they clear each other sind are coniiecting;paitstheflinlis nretslnftiuli-froin' so maintained circumferential'ly in alinethe longitudinal-position shown in Rig. 9 ment reliitivel to eethother.- 73 represents to the trunsverseposition shown in Fig'. l, s.- plumlity o radial links each of which is whereby ii toggle action; is prodinwl whirli 40 pivotally connected :it its inner end by ii causes. the long rear :ii-meuf tho several 105 pin -74 with the rear end of the long arm clam img levemto be turned ni'iirdly ,toof one of the clamping )evers while its outer warf the axis-of the clutchv with ai toggle end is pivoted on the operating spoolwitliin etion. When Ythe clamping levers uro the rear end of one of the slots 72 by menus turned 'inthis direetiointliii .fnlerniis of tlio o1" n transverse pin 75, the letter being held seme Hout or slide townrl the cli li 'disk 110 against displacement by i set screw 76 ai'- to 'ether with the inner grippin r dink on ranged on the spool zuid engaging with the w lich they iii-o pivotnlly nioinilm andthe side of this pin, as shown iii l1 igs. l und 10. short arms of the sevoinl rliiniping lovers In the closed or coupled position of the more rearwardly oi iiwily from tliv rliitoli 60 clutch the several links projeot inwiirdly disk, thereby iiioiingtho outer gripping 116 from their pivotal supports on the spool, iis rin r toward the opposite nido of the rlidoli shown in Ii ig. 1, while in the open or imdis r, wliereliy the hitter is gri|i|iml1lictwwn- 'pping rings und the two alnifts coupled position ,of the reunie, these links the two gri .project forward from their pivotal oonneonro coupled. 'llii` extent of the forward tions willi the spool und substantially piti-nlmovement :it this tinnI is preferably such 120 lel with tln-` nxii: oi' ihr rlnti-li` :is shown in (het the outer ends o f tho links zii-o cori-intl Fill il, slightly in iidviinoo or beyond tlio :heul ren 6i' roprrsoi (s :i plurnlitr of fnlrrnin blocks toi' on n i'inlinl liiir ili'uwn'tliiongli llw pivwhirli' :ire iiri'iinged in iin unnnlzir row otiil 4roniivnlionn between vurli lilik und the around the axis of the clutoli und noch of longitudinal iirin of tho roem-.divohumping 125 which isui' infin-voted forni with its bi'niicliei-i Iei'i'l. im shown in Fig. l. wh'vrola)r i.Iw.,|-l||t.h projecting formu'dly :ind nrriixiged with its ii: lorkod in iLwi-onplod oi' rlosod position. i'enrend in :i longitudinal slot 78 in tlninner Upon moving-thiopeintin'g lover :ind spool oi'fronteilgeofthr shiftingringg 4Ei.\\'hiloit.s lniokwnrdly tho liiksnre shift/Ld from ii front ond is arranged in :i loiijtndiniil slot i'iuliiil misi-tion toi: longitudinal position and 130 :'clutch disk nntil the hitter is In lilce manner, should the inner grippingr ring act promptly than the outer gripping ring upon moving for opening the clutch, disk, thereby ediislng the fulcrums of the t en t e outer ripping ring would be lrst 7o clamping levers to mmc aiwuy from the inmoved awiiy rom the outer side of the Q clutch disk until nr gripping ruw to more` nwny from the outer the shifting side of the c iitch disk, thus eliecting open! l ing or uiicoiipling of the clutch. rution of thie gripping y engagement of the inner grippingb'ng with the front side of the hub flange and the engagement of the adjusting ring with the rear side of the sumo, as shown in Fig. 9. so

grip in ring is arirs-ted by engagement midi) gli@ of the liiib flange. `8n

It will thiis be ap nrent that under nli that the opposite sidesof Vthe hub Bunge form circumstances when e using the clutch both stolps or iibntments'for this pur gripping memberswill compelled to e'nf, for any renson, the inner 4gage with opposit'sides of the clutrh'disk that the prrurs of the gripping inem- 85 bers will he 'e ually divided between them,

so esto p uce uniform wear. It will also be obvious that in'tlu's clutch both e t moving thtl operating spool forwardly, then' the clamping lei'eis diirin v the first piirt of their closing movementwill simpl rock on the inner gripping ring und die entire l shifting elect of these levers will be trimsp ite sid of 'the U0 mitted to the outer gripping ring nntil the i)0s clutch disk 'through the medium of the oliter friction ring, but during the continued turning movement of the clam Jing levers ecessary wear upon 96 in the same direction the connection between the same nt this time. the short urms of those levers and the nd- During both the coupling jnsting ringr will forni the fiilrriim for the action of the liitch each of the clamping same, thereby causing' the iiiner gripping lei-ers swings nbonttwo Hostings' fulerums ring and the pivotal connections between the both of which haven plain translation or efsnnie and this ring to he forced toi 'ord the feet a direct transmission' of poser from engaged on this lever to the Ytwo one its. inner side by the inner grippin ring of thofiilcrnnis'hemg t e ivotal connecthroii'gh' the medium of theinner i'irtion tion b einher ip.A disk. 'In like manner, if the outer grippin r ring und associated parts shun d stic or move sliiggishly when operating s ool for closing or coupling the'chitch. then tie inner gripping ring together with the pivotslconnection between thesume und the clampin f levers will be moved towiii'il the inner s' e of thecliiti-h first, after which the shifting ring, adjusting ring und outer gri ipng nog.; will be moved forcibly in the i irection or -ngiiging the lutter with the opposite side of the clutch ring.

f, upon moving the operutin v spool huela wnrdl' for nncoiipling the c utch` there slioiili he any rrturding or resista-nce to the opening movement of the outer grip ing ringlr und connected parts, (hun the lirst elfectivcfnioveinent won d be performed by the inner gripping ring und the pii'otiil connection between the :nime und the chimping levers 'until this ring is'ni'iested h )j en- Iinigement with the front side of tlii-- hun flange, ufter which the outer gripping ring und connected pui-ts would ln, compelled to move in the direction for opening the clutch until the shifting ring engaged the ienr c utch, und prevents ate as one of tlieseoond ,c The p connection between en oh clampin the shifting ring alsoftums bodi y with this lever and elects ii. sli ht translation of iriove-4 ment by reason of its sliding action in the companion fiileruin block. i

For the purpose lof taking up any weer between the clutch disk, friction rings and gripping rings, it is only necessary to first4 release the locking -pins 47,4 then turnl the adjusting ring,r the required extent to take upthis weer afterwhich the locking pins nre ugiiin tightened' for holding the parts in their adjusted positions.

f the wear upon opposite sides of the rliitrh disk or the gripping rings and friction disks should be uneven, the clutch diskwill accommodate itself to this dll'erence by sliding iixiully on the coupling or clutch sleeve 22, therein adapting the clutch to this changed con itiou without'in any way 13o menons i;

unbulnncing thc operation of the clutch, By thus shrhihly iiiountiiig the clutch .disk on its shaft, iin iixiul movement ofV the two sha-fis vreliitivelv to uni-h .other 'his :pulile without ilistui'liing the working .offthe clutch. By mounting the operating spool on its slizifrby means of. iin interposed Vhushiiig it is possible to use the vsuine s )ool for one size nf clutch in connection witi shafts of different diameters `iniisinuch .iis fit -is only necessary to employ u bushing off the required bore for mounting -this spool you ii particular size of shaft.

-145 between the operiitinglever and the shifting;l collar, fthe tonstruction :is very ,much simplified, its strengthiis increased und lthe weer is reduced.

In addition'ito causing the `inner oi'.hub gripping' ring to engage .with and d-lb gage from the .inner 'side-of 't1ie. cluth xlisk y the actionof the clempingleveraandintermediate 'transmit-tin g i elemente t connected therewith, this is supplemented by ;t h'e,prlae ticully directaction of the Qperiiting spool which during `its forward -motion engages .by a direct push with the fulcruin lu s on the :inner gripping ring end also is; isen aged therefrom by a direct pull wheuopenuw the clutch. i

twill noted that in the assembled osition of the ports of ythe olutch,;fthe lcrum pin 69 which pvotally connects .each clamping lever with the respective'fulcrnm lug on the inner or hub gripping ring has its opposite ends arranged o p ite the longitudinal walls of the slot 68v in the hub hange, whereby this pin is 4prevented from becoming detached without requiring any` special means for this urpose.

he modification of my invention shown in Figs.' 12 and 13 is constructed as follows: 84 represents a follower or nd'ustin ring which is provided ut one end wit n. -fo lower flange 85 bearing e einst the outer sident the clutch disk 86 tirough the medium of .the friction rin ndjustin r ring 1s provided with en internal screw t rend which receives an external thread on e shiftingI ring 88.V Between its ends this adjusting ring is provided internallyiwith a plurality of longitudinal key seats or guideways 89 eoh of which receives n longitudinally adjustable Afulorum block 56 90 which hitter is locked in position by engagement of its rear side with thevshifting vrin while its front side is provided with n loc ing pin 91 projecting forwurdly into an opening 92 'in the adjusting ringnd en- A gaged by a set screw 93 mounted on the adusting ring. The dan e 94 of the hub 95 is provided with a ra inl slot 96 euch .of whichfeccivcs one of the fulcrum blocks und also one of the fulcrum lugs 97 which projects rearwardly from the rear or hub the fronts; epi

edusting ring 84 .in tis- -is n 87. The other end of this v1 .ront

:gripping ring `mit. Each .of the Yelbow ehiinpingleversfBS is ,pixotcdet ii', il: by a `pinillion the fuleriuiiilugiand at it ie outerendmilits Short tifnnsveifs-r uriu tothe .follower hloik 90 hy. it. cross piti 100. `70

Upon turning;` thcle.\'erA 98 ,in one :dimetion, the t\roiii-'ipping members' 36l4andf85 are pressed iigixinst 1opposite sides .of lthe `clutc; i disksous ,to 4'close or, couple fthe clutch, end iwhen ,turning theselevers .in ,the 1 5 .opposite idiifection, ;tlie`s'e ,gigi ipng members .in-e withdrawn Afrom the c utoh disk, :the

0 .extent-.ot Ethis withdrawal-heiligilimitedib Owing to the absence .of any trunnions.-

side oithe shitting ,rin 88-.eiigiiguig-.with

,thereaneidecfitlieihub: ange. :For adjust- .iingjhe .clutch .-to-.tu'ke u' weile-:the .set screw .93. is --retracted i undy gt e Y.tliiittirig-` ein -.v88iisti1rned=i .epplyin ,aepauneriwren'ciis to .o i uixigsgt 1 iuntil .t ieiilistiini-e. ibetween the v,ollowr-ftllininie'8f, :ind itlieishi-ftngriiig :.88 Ahas .heen Y j no edy'therequired.extent` gfter which Aitlieipeiits ,nreiggliin .looked ,in ,plnce ;",1`l1e..operati;in ,ofi zthisiconstruction l9o Ain iztlier iespectsjs similar :to :tli'atdeeci-ibed with reference -to the .construction-shown -in ome `oftthe iidvantegemebove enumerfuted are embodied in themodied itQuStruc-V- .tigri hown in 14..an,d15. ,I'irithese efigured-1112 repressa ntslone-of-` itheiclainping :levers A.which is -pivoted .tothe delige f A136 of thehub v104laymeitnst. epin -105V and the huh 4gri einel 1.00 is .to the Loo screws one of -which is shownat :107. The

.clutchdsk 4[08 in :this case is slidnbleexially .onl lthe clutch slee-ve -22 hut compelled-to turntlierewithiis in the'. previous vsti-,'uutui'e, 105 und the sames engiigedpn its rear side by the hub grip )ing ring lGtlviindon its front side by n fol owengripping ei 1&9 =which letterihiiseflange projecting .over the clutch [und hub ipping ein .The lio ed with a; rtlungetien ing xiiith the outer Vgripping; ring A109 w iile its .rear end hasni-screw connection .with a sluiting ring,l 111. A fulciuiir block [14 is secureilto 115 the latter by means of ii screw which block -projecto into ,a slot' llG A in the flange of ythe outer Igri ,pin ring 109 und is pivoteglly' connecte Wfitl :the short arm of the elbow lever by ineens .of a. pinna 117. 'The long erin .of vthe clamping lever is connected with the longitudinally movable spool 53 hy .ineens ofrthe link 73. Lnckingfof the adjusting ring relatif/ely ,to

,thc shitting ring is ctoctwlhy u locking pm 125 48 sliding mthe 'shifting ring und ongeg-` ing with thi-. lungo of :the outer rripping ring und u set screw giri-nii i 'on the shifting i:iiig xiii l engaging wit the locking pin. In this construction the` entire couso vim movement s effected which isgrippjng ring 109 nt in other i'espectstlie operation is the same ns tht s own in Figs. 1-10. l members. i he severallconstructions oftmy invention 4. A clutch `for coupling an'd uneouplin liereiiibefore two rob-fry. elements comprising an intel'- mediate clutch member` iidaptod to be mounted 0,31 one gf said elements, two gril )infr mem ers a ii ted to e 'n' opposite id of said inemiediaiengmiber adapted to be mounted on the elements, and means for -iictiiiiting said fripping members including a climiing ere in nsmurli :is u'liici is piioted e is not linble its fol-king serves as a stop to limit the o ment of both of said A clutch for coupling andunoupling two rotary eleiiients-qqn'iprising an interme diite clutch-member mounted on d ri in"memberslb mounted on ii'ld mims for notllignglsii'idi 4 ping membersineluding a; gli' pivoted'ontiie n io'unted on the Lu rin en ii in und a hub which nndg g g g Suid ipping meinoperating the lever gdr ei osin the clutch. i clutc' for coupling und uncouplng ts comprising an ntcrndapted to be nionntcd on one of Suid elements. tiro gripcouiled, und means for igripping members :i predetermined dis,- tnnec toward and from opposite sides of said intermediate cliith ever operatively connected with -both of said gripping members receives tl eieiiients, :im ping memb opera tire! r Fing niein'bei's, the connection between mounted on the u im adjust' rin 8' gngmg the other Fripping member, n shifting ring adjiistab y justing rin I and a fiilcrum block on said shi ting ring and with said lever.

A clutch for coupling` tiro rotary elements comprising an intermediiite clutch ted to be mounted on one of said elements, a hub adapied to be of said elements, two

mounted slidingly connected the clutch.

for coupling and uneollpli'ng oleiimnts coinprisingiin intermediiite clutch member adapted to lie mounted on one of sii-id elenivnts. two gripping ineinitecl to engage opposite sides of said iind uncoupliijg with ip in an infernal shifting ringgliidil cied with Said adjusting ring and pivotally connect-ed with said" lever, and means ,for locking said ,adjusting and shift- 'mg'.-r'mgsagainst movement relatively to each tothe'r.

8..Acliiteli for coupling and uncouplingf two irotaryi elements comprising an interme diiitefcliitch member adapted to 'be mounted on oneiof said elements, a hub adapted to be mounted on the other of said elemente ippingmembcr having a flange, iin adjnst ing ring'havin a flange which eiigiigesthe4 gripping inem ei' having a, flange iiA lever associated with said gripping members, l.

shifting i-ing hai-'ing 'a screwf connection withv said adjusting ring, and a pivotal connection with said lever, and means ,for locking said adj iisting ring iind shifting ring againsty movement relatively to each other.

9. -A clutch for coupling and uneoupling.

two rotary elements comprising an intermediete clutch member adapted to be mounted on ,one of said elements, a hiibiadapted to be mountedfon thi?) otherdo siid elements, two ri pin mein ers a a te to en ge o goslite ides of 4sai'd intermediatf:u clutll member, one of said grip ing members being mounted on said liiib anr the other gripping member having a flange, an ,adjusting ring having ii Bange which engages the grippin member having a flange a, lever associ with said gripping members, a shiftin ring having a screw connection with said a justing ring and pivotal connection with said lever, and means for locking said adjusting ring and shifting ring against movement relatively to each other, comprising a lock- 'ing pin engaging with the flange of said danged gripping member and guided on said shiftin ring, and a set screw arranged on said shifting ring and engaging said locking pin.

I0. A clutch for coupling and uncoupling two rotary elements comprising an intermediiite clutch member adapted to be mounted on one of said elements, a hub adapted to be mounted on the other of said elements, two gripping members adapted to engage opite sides of said intermediate clutch inemr, one of said gripping membersv being mounted orsaid hub and the other gripping .member having a flange, an adjusting ringv ,having ii fiangc which engages the gripping member having a flange a lever-associated with said gripping members, fi shifting ring having a screwconnecti'on with said adjusting ring and :i pivotal connection w'th said lever, and iiieiins for locking'said jiistiiig ring and shifting ring against movement relatively-to each other, comprising a lock,- ing pin engaging with the flange of sii'id flanged gripping member and guided on said misi r shifting ring, set' screw arranged said shiftisilgarilighand engang sai leggi in pin in i rovi with, wenn imf p i p and said shifting ring and saidhulibeig provided with guidewiiyswhich reeeivesa head.;

11. A clutch. .for coupling, and uncoiiplmg two rotary elements oomprisingln intermedate clutch member-adapted tomounted on one osaid elements, a hub adapted to be mounted on the odierni-said elements, two

gripping members. adapted` t0' 0113289 OP' one of said=grippingmembersV being mounted on saidhub,' an adjusting: ring op. erativel .related tothe other gripping'inember, a s iifting ring havixiga screwA connection, with` said iidus'tingring, endaV lever connected. with, said. adjusting ring v and op eratively associatedw'ithsaidgripping meinber which is on the hub.

12.. A clutch for coupling and uneouplipg two rotary elements comprising` an intermediete Iclutch member adapted toibo mounted on one of slid elements,- a hub adapted to be mounted on th'otherdof said elements, two

ri in mem is a a te 4toengage opg siti; siirieeof said interiiiedate clutch -memer, one of 4amid gripping; members being mounted on said hub, an adiusting'ring operativel related to .the other grippuig -mem' ber, a s itin ringhewinga screlv'eonnem tion ,with sai wdJueting ring 1,. l. lever oonnected with said ring and opersf' -grP tively associated with pin member whih ijoiitlshe hub, enddmeansslff or lo ckmg sai a u n en ing -ring against rotation to eachother.`

13. A clutch .for coup and Vuucoupling two rotary elements comprising an intermedieta clutch member adopted .to be mounted on one of said elements, a hub adaptedl to be mouneei on the athen of said elements eind rovi wit ychange, e fp mem er iiite mi between oneaidglolmsld 'clutch mem. and s`l .dhubllange;meanslior iding said g'rppmgmemben'on saiillhiibange including a gui 'sleevev i-oneend with one side ofsaid gripping member und sldin isili scid' .is screv am in sai eaves I-iiieeu -to-sai ping member, anda washer. -belgrnesn the head of said screw and the-opposite end of said sleeve and. adaptledvto'engege'a side of said hub flange a gri ing` m ranged on thefopposxtezside ofsaidiclutch mi'iinber, and means for moving said grip ping members toward and fromY opposite sdesof said clutch member.

14. A clutch ,for coupling and uncoupling two rotary elements com rising an intermediete clutch disk adapte 4te be mounted on one of said elements, a. hub ads. ted to be mounted on the other of 'said emente, a gripping ring arranged between one side e-sdes of. saidintermediateclutch inem Vo'siiid clutch disk and said hhub, another said cliifch disk and said hub, mother gripping ring arrangefd on t e opposite ping ring arranged on the opposite si e of side of said clutch disk and havin an said clutch disk and havin an annular Banged gripping ring, a |1ifting ring havgripping ring,ashifting ring havingascrw ing a screw connection with said adjustin connection with said adjusting ring and pro rin and provided with a longitudinaLslot vided with alongiiudinnl slot 1n line with the lo inA ine with the slot in sai ripping ring s ot in said ipping ring Hangs, a fulci'um 30 l5 15. A clutch for coupling and uncoupling gagging. with said siot and also providedvas two rotary elements comnrising an nbprniewith a round part, and a lever having an diate clutch disk adapte to be mounted on opening which receives the round part of 2o gripping ring arranged between on sideof vHARRY J. SMITH 

